Lead-pipe-sealing cap.



S. D.. NECHAMKUS.

LEAD PIPE SEALING CAP.

APPLICATION FILED MAR.29, 191s.

Patented Dec. 12, 1916.

w/awwwwk 3 no (am/to e SH/WZ/A-Z ,0 NEG/7997177? U5 4 351 11/1/31 @Md'vmmg mamw/ SAMUEL D. NECHAIVIKUS, OF NEW YORK, N. Y.

LEAD-PIPE-SEALING CAP.

Specification of Letters Patent.

Patented Dec. 12, 11916.

Application filed. March 29, 1916. Serial No. 87,408.

1 '0 all whom it may concern Be it known that I, SAMUEL D. NicorrAM- nus, a citizen of the United States, and a resident of the borough of Brooklyn, city of New York, county of Kings, and State of New York, have invented a new and Improved Lead-Pipe-Sealing Gap.

The object of this invention is to provide an economical and efficient means for sealing the ends of lead pipes or lead bends prior to testing of plumbing systems wherein such bends are used, particularly in water closet connections.

The method most commonly employed for sealing the ends of lead pipes consists of striking the ends of the pipe together until the opening is closed and is then soldered over. This necessitates the use of a longer lead bend or piece of pipe than would otherwise be required, as the deformed end must be out 01f before the water closet bowl can be set down or connected.

Another objectionable feature of the method just mentioned is that preparatory to setting down of the water closet floor flanges, it becomes necessary to cut away the floor tiling in many instances in order to provide sufficient working space around the pipe in order to be able to set down the closet bowl, thus entailing a considerable loss of time and expense.

I eliminate the above mentioned objectionable features by employing a cap made of lead or tin which is adapted to fit into the end of the pipe or lead bend and which is held in place by being soldered thereto. After the plumbing system is tested, the cap is removed by heating it with the aid of an ordinary plumbers torch thereby melting the solder and permitting the removal of the cap giving the full bore of pipe or lead bend prior to the setting down of the closet bowl.

One of the advantages obtained in the use of my device is that a shorter piece of lead pipe or lead bend, than in other methods, may be used, since it is unnecessary to hammer the ends of the pipe down in order to seal it.

Another advantage of the device is that a considerable amount of labor and time is saved in the sealing of the pipe prior to the testing of the system and in unsealing it later.

A f h d antage of my device th t when the cap is removed, the full bore of the pipe is available.

Another feature of my improvement is that it takes less solder to seal the pipe than in the older methods.

Another very important feature of my device is that the central portion of the top of the cap is depressed thereby reinforcing it against radial pressures. Furthermore, when the pressure of the water is applied against the inner surface of the depressed portion of the cap, there is a tendency to lift the de pressed portion,this in turn causing the sides of the cap to have a tendency to bulge outwardly and press against the sides of the pipe, thereby tightening the cap in position.

Another feature of my device is that the sides of the cap are shaped to form a rounded or annular projection encircling the sides near the bottom, permitting the cap thereby to be inserted freely into the pipe and at the same time leaving a gap between the inner surface of the pipe and the outer surface of the sides of the cap into which the solder can flush in such a way as to prevent the cap from blowing out.

Other features will be apparent from the description and the accompanying drawing forming a part of this specification and in which similar numerals correspond to similar parts in all the views, and in which:

Figure l is a sectional elevation of a portion of a pipe showing a cap in place and taken on line 11 of Fig. 2; Fig. 2 is a plan view of the top of a pipe with the cap in place but the solder omitted; Fig. 3 is an enlarged view of a portion of a pipe and a cap in place, showing the details more clearly; Fig. i is a side view of a lead bend attached to a brass ferrule and a sealing cap in place at the top of the bend.

Referring to the figures, the cap 1 preferably made of tin is stamped from one sheet of metal and is composed of the top portion 1 having its central portion 2 depressed as shown, is connected to the sides 3 by the beveled portion 7 The sides 3 are bent outwardly and then inwardly as shown, thereby forming the rounded or annular projection 4. The cap is inserted into the open end of the pipe 5 with the annular projection 4 abutting against the sides of the pipe. The solder 6 is applied against the inclined surface 7 and sides of the pipe 5 and is allowed to flush inside the gap between 'top portion 1. This in turn will cause the sides 3 to press. against the sides of the pipe 5 and thereby the cap will be tightened in position.

In Fig. at a lead bend 5 having one of the caps in place, is shown attached to a brass ferrule by means of a wiped oint 9.

Having thus described my invention, I

claim as new and wish to secure by Letters Patent:

'1. A device for sealing lead pipes, co1nprising atop portion and a side portion adapted to be inserted into the pipe, the side portion being bent outwardly and then inwardly forming thereby an annular projection for the purpose shown and described.

2. A device for sealing lead pipes, comprising atop having its central portion depressed and a side portion adapted to be inserted into the pipe, the side portion being bent outwardly and then inwardly forming thereby an annular projection for the purpose shown and described.

3. A device for sealing lead pipes. coniprising a top portionhaving its central portion depressed, and a side portion havin its junction with the top portion bevele the said side portion being bent outwardly Copies of this patent may be obtained for and then inwardly forming thereby an annular projection for the purpose shown and described.

4. A device for sealing lead pipes co1nprising a top portion and a side portion 1 adapted to be inserted into the pipe, the side portion being provided with a rounded projection adapted to be in contact with the in nor surface of the pipe, and a layer of solder adapted to flush into said gap.

5. A device for sealing lead pipes, eo1nprising a top portion having its central portion depressed and a side portion being provided with a rounded 1)].Oj0Clil0l1 adapted to be in contact with the inner surface of the pipe thereby leaving a gap between the side portion and the inner surface of the pipe and a layer of solder adapted to flush into said gap.

6. A device for sealing lead pipes, co1n prising a top portion having its central portion depressed and a side portion having its junction with the top portion beveled, the said side portion being provided with a rounded projection adapted to be in contact with the inner surface of the pipe, thereby leaving a gap between the side portion and the inner surface of the pipe, and a. layer of solder adapted to flush into said gap and over the beveled portion at the junction of the top and side portions.

Signed at New York, county of New York and State of New York, this 27th day of March, 1916.

SAMUEL D. NECHAMKUS.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

